The calculated distance (air line) between Phumĭ Koŭk Kóng and Dar is approximately 35 miles respectively 56 kilometers.
By car or train, the actual journey to Dar is certainly longer, as only the direct route (as the crow flies) between Phumĭ Koŭk Kóng and Dar has been calculated here.
Air line (approximately)
56 kilometers
30 nautical miles